Home / 10,092.78-15,139.25-3,518.95

Finding the Fourth Proportional to 10,092.78, 15,139.25 and 3,518.95

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Solution

The fourth proportional to 10,092.78, 15,139.25 and 3,518.95 is: 5,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,092.78 : 15,139.25 = 3,518.95 : x
  2. Step 2: Convert to fraction form
    10,092.78/15,139.25 = 3,518.95/x
  3. Step 3: Cross multiply
    10,092.78x = 15,139.25 × 3,518.95
  4. Step 4: Simplify right side
    10,092.78x = 53,274,263.79
  5. Step 5: Solve for x
    x = 53,274,263.79/10,092.78
  6. Step 6: Final answer
    x = 5,278.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.